Display device

ABSTRACT

A display device includes a display panel including a front portion, a first side portion which extends from a first side of the front portion, a second side portion which extends from a second side of the front portion, and corner portion disposed between the first side portion and the second side portion. The display panel includes a first display area disposed in the front portion and including a plurality of first emission areas and a plurality of sensor electrodes, and a second display area disposed in the corner portion and including a plurality of second emission areas and a plurality of first sensor lines electrically connected to at least some of the sensor electrodes.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. Pat. Application Serial No.17/220,079 filed Apr. 1, 2021, which claims priority under 35 U.S.C. §119 to Korean Patent Application No. 10-2020-0044630 filed on Apr. 13,2020, the disclosures of which are incorporated by reference herein intheir entirety.

TECHNICAL FIELD

Exemplary embodiments of the present inventive concept relate to adisplay device.

DISCUSSION OF THE RELATED ART

Display devices may be implemented in various electronic devices suchas, for example, smartphones, digital cameras, notebook computers,navigation systems, smart televisions (TVs), etc.

As technology advances, the demand for display devices with variousdesign features has increased in accordance with applications of displaydevices to a variety of electronic devices. For example, research hasbeen conducted on a display device capable of displaying an image notonly on a front surface thereof, but also on four curved edge partsthereof. This type of display device may include a corner portionbetween a first side portion bent from a first edge at the front thereofand a second side portion bent from a second edge at the front thereof.

SUMMARY

Exemplary embodiments of the present inventive concept provide a displaydevice capable of preventing a non-display area disposed between adisplay area at the front thereof and a display area in a corner portionthereof from becoming visible to a user.

According to an exemplary embodiment of the present inventive concept, adisplay device includes a display panel including a front portion, afirst side portion which extends from a first side of the front portion,a second side portion which extends from a second side of the frontportion, and corner portion disposed between the first side portion andthe second side portion. The display panel includes a first display areadisposed in the front portion and including a plurality of firstemission areas and a plurality of sensor electrodes, and a seconddisplay area disposed in the corner portion and including a plurality ofsecond emission areas and a plurality of first sensor lines electricallyconnected to at least some of the sensor electrodes.

In an exemplary embodiment, the first sensor lines do not overlap thesecond emission areas.

In an exemplary embodiment, at least one of the first sensor lines isdisposed between each pair of adjacent second emission areas.

In an exemplary embodiment, multiple first sensor lines from among theplurality of first sensor lines are disposed between each pair ofadjacent second emission areas.

In an exemplary embodiment, each of the second emission areas includesone or more sub-emission areas that emit light of different colors, andat least one of the first sensor lines is disposed between thesub-emission areas.

In an exemplary embodiment, the display panel further includes a thirddisplay area disposed in the corner portion, the third display areaincludes a plurality of cutout portions spaced apart from one another,and a plurality of third emission areas disposed in the cutout portions,and the second display area is disposed between the first display areaand the third display area.

In an exemplary embodiment, the display device further includes aplurality of cutout gaps formed between the plurality of cutoutportions.

In an exemplary embodiment, the second emission areas are disposedbetween at least one of the first sensor lines and the third emissionareas.

In an exemplary embodiment, the cutout portions include dams whichsurround the third emission areas.

In an exemplary embodiment, the display panel further includes anon-display area disposed in the corner portion, and the third displayarea is disposed between the second display area and the non-displayarea.

In an exemplary embodiment, a first end of each of the cutout portionsis connected to the second display area, and a second end of each of thecutout portions is connected to the non-display area.

In an exemplary embodiment, the display device further includes aplurality of second sensor lines disposed in the non-display area andelectrically connected to at least some of the sensor electrodes.

In an exemplary embodiment, the second sensor lines are disposed in awinding shape including multiple bent portions.

In an exemplary embodiment, the display panel further includes a thirddisplay area disposed in the corner portion and including a plurality ofsecond sensor lines connected to at least some of the sensor electrodes,and the second display area is disposed between the first and thirddisplay areas.

In an exemplary embodiment, the third display area includes a pluralityof island portions spaced apart from one another, a plurality ofconnecting portions which connect the island portions to one another,and a plurality of third emission areas disposed in the island portions.

In an exemplary embodiment, the second sensor lines are disposed in theisland portions and the connecting portions, and do not overlap thethird emission areas.

In an exemplary embodiment, the third display area further includes aplurality of cutout portions disposed between the island portions.

According to an exemplary embodiment of the present inventive concept, adisplay device includes a first display area including a plurality offirst emission areas and a plurality of sensor electrodes, a seconddisplay area disposed adjacent to the first display area and including aplurality of second emission areas and a plurality of first sensor lineselectrically connected to at least some of the sensor electrodes, and anon-display area disposed adjacent to the first and second display areasand including the first sensor lines.

In an exemplary embodiment, the first sensor lines do not overlap thesecond emission areas.

In an exemplary embodiment, the display device further includes a thirddisplay area disposed adjacent to the second display area. The thirddisplay area includes a plurality of cutout portions spaced apart fromone another, and a plurality of third emission areas disposed in thecutout portions. The second display area is disposed between the firstand third display areas.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features of the present inventive concept willbecome more apparent by describing in detail exemplary embodimentsthereof with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a display device according to anexemplary embodiment of the present inventive concept.

FIG. 2 is a plan view of the display device of FIG. 1 .

FIG. 3 is a development view of the display device of FIG. 1 .

FIG. 4 is a cross-sectional view of the display device of FIG. 1 .

FIG. 5 is a layout view illustrating an exemplary sensor electrode layerof the display panel of FIG. 4 .

FIG. 6A is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept.

FIG. 6B is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept.

FIG. 6C is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept.

FIG. 7 is a layout view illustrating sensor electrodes and firstemission areas in the first display area of FIG. 6A.

FIG. 8 is a cross-sectional view taken along line I-I′ of FIG. 7 .

FIG. 9 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

FIG. 10 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

FIG. 11 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

FIG. 12 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

FIG. 13 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

FIG. 14 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

FIG. 15 is a layout view illustrating exemplary cutout portions andexemplary third emission areas of the third display area of FIG. 6A.

FIG. 16 is a layout view illustrating exemplary cutout portions andexemplary third emission areas of the third display area of FIG. 6A.

FIG. 17 is a cross-sectional view taken along line II-II′ of FIG. 9according to an exemplary embodiment of the present inventive concept.

FIG. 18 is a cross-sectional view taken along line III-III′ of FIG. 15according to an exemplary embodiment of the present inventive concept.

FIG. 19 is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept.

FIG. 20 is a layout view illustrating exemplary second sensor lines ofthe second display area of FIG. 19 .

FIG. 21 is a layout view illustrating exemplary second sensor lines ofthe second display area of FIG. 19 .

FIG. 22 is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept.

FIGS. 23 and 24 are layout views illustrating exemplary island portions,exemplary connecting portions, exemplary third sensor lines, andexemplary third emission areas of the third display area of FIG. 22 .

FIG. 25 is a cross-sectional view taken along line IV-IV′ of FIG. 23according to an exemplary embodiment of the present inventive concept.

DETAILED DESCRIPTION

Exemplary embodiments of the present inventive concept will be describedmore fully hereinafter with reference to the accompanying drawings. Likereference numerals may refer to like elements throughout theaccompanying drawings.

It will be understood that when a component, such as a film, a region, alayer, or an element, is referred to as being “on”, “connected to”,“coupled to”, or “adjacent to” another component, it can be directly on,connected, coupled, or adjacent to the other component, or interveningcomponents may be present. It will also be understood that when acomponent is referred to as being “between” two components, it can bethe only component between the two components, or one or moreintervening components may also be present. It will also be understoodthat when a component is referred to as “covering” another component, itcan be the only component covering the other component, or one or moreintervening components may also be covering the other component. Otherwords use to describe the relationship between elements may beinterpreted in a like fashion.

It will be further understood that descriptions of features or aspectswithin each exemplary embodiment are available for other similarfeatures or aspects in other exemplary embodiments, unless the contextclearly indicates otherwise.

As used herein, the singular forms “a”, “an” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise.

Spatially relative terms, such as “beneath”, “below”, “lower”, “under”,“above”, “upper”, etc., may be used herein for ease of description todescribe one element or feature’s relationship to another element(s) orfeature(s) as illustrated in the figures. It will be understood that thespatially relative terms are intended to encompass differentorientations of the device in use or operation in addition to theorientation depicted in the figures. For example, if the device in thefigures is turned over, elements described as “below” or “beneath” or“under” other elements or features would then be oriented “above” theother elements or features. Thus, the exemplary terms “below” and“under” can encompass both an orientation of above and below.

It will be understood that the terms “first,” “second,” “third,” etc.are used herein to distinguish one element from another, and theelements are not limited by these terms. Thus, a “first” element in anexemplary embodiment may be described as a “second” element in anotherexemplary embodiment.

Herein, when one value is described as being about the same as or aboutequal to another value, it is to be understood that the values are equalto each other to within a measurement error, or if measurably unequal,are close enough in value to be functionally equal to each other aswould be understood by a person having ordinary skill in the art. Itwill be further understood that when two components or directions aredescribed as extending substantially parallel or perpendicular to eachother, the two components or directions extend exactly parallel orperpendicular to each other, or extend approximately parallel orperpendicular to each other as would be understood by a person havingordinary skill in the art (e.g., within a measurement error). Other usesof the terms “substantially” and “about” should be interpreted in a likefashion.

FIG. 1 is a perspective view of a display device according to anexemplary embodiment of the present inventive concept. FIG. 2 is a planview of the display device of FIG. 1 .

Referring to FIGS. 1 and 2 , a display device 10 may be utilized in aportable electronic device such as, for example, a mobile phone, asmartphone, a tablet personal computer (PC), a mobile communicationterminal, an electronic notepad, an electronic book (e-book) reader, aportable multimedia player (PMP), a navigation device, or anultra-mobile PC (UMPC). The display device 10 may also be utilized in,for example, a television (TV), a notebook computer, a monitor, abillboard, or a display unit of an Internet-of- Things (IoT) device. Thedisplay device 10 may also be utilized in a wearable device such as, forexample, a smartwatch, a watchphone, an eyeglasses-based display, or ahead-mounted display (HMD). The display device 10 may also be utilizedin, for example, the dashboard, the center fascia, or the centerinformation display (CID) of a vehicle, the room mirror display of avehicle that can replace side-view mirrors, or an entertainment displaydisposed at the rear of the front seat of a vehicle.

A first direction (or an X-axis direction) may be a directionsubstantially parallel to the short sides of the display device 10 in aplan view, for example, a horizontal direction of the display device 10.A second direction (or a Y-axis direction) may be a directionsubstantially parallel to the long sides of the display device 10 in aplan view, for example, a vertical direction of the display device 10. Athird direction (or a Z-axis direction) may be a thickness direction ofthe display device 10 that crosses the first direction and the seconddirection.

The display device 10 may include a display panel 300. As illustrated inFIGS. 1 and 2 , the display panel 300 may include a front portion FS, afirst side portion SS1, a second side portion SS2, a third side portionSS3, a fourth side portion SS4, a first corner portion CS1 connectingthe first side portion SS1 and the second side portion SS2, a secondcorner portion CS2 connecting the second side portion SS2 and the thirdside portion SS3, a third corner portion CS3 connecting the third sideportion SS3 and the fourth side portion SS4, and a fourth corner portionCS4 connecting the first side portion SS1 and the fourth side portionSS4.

The display panel 300 may include a flexible substrate SUB (see FIG. 4 )that is bendable, foldable, or rollable. For example, the substrate SUBmay include polyethersulphone (PES), polyacrylate (PA), polyarylate(PAR), polyetherimide (PEI), polyethylene naphthalate (PEN),polyethylene terephthalate (PET), polyphenylene sulfide (PPS),polyallylate, polyimide (PI), polycarbonate (PC), cellulose triacetate(TAC), cellulose acetate propionate (CAP), or a combination thereof.Alternatively, the substrate SUB may include a metallic material. Thesubstrate SUB may be partially or fully flexible.

The front portion FS may have a rectangular shape having short sidesextending in the first direction (or the X-axis direction) and longsides extending in the second direction (or the Y-axis direction) in aplan view. In this case, the short sides of the front portion FS may berelatively shorter than the long sides of the front portion FS. However,the present inventive concept is not limited thereto. For example,according to exemplary embodiments, the front portion FS may havevarious other shapes such as another polygonal shape, a circular shape,or an elliptical shape in a plan view. FIGS. 1 and 2 illustrate that thefront portion FS is flat. However, the present inventive concept is notlimited thereto. For example, according to exemplary embodiments, thefront portion FS may be curved.

The first side portion SS1 may extend from a first side of the frontportion FS. The first side portion SS1 may be bent along a first bendingline (BL1 of FIG. 3 ) on the first side of the front portion FS and mayhave a first curvature. The first side of the front portion FS may bethe left side of the front portion FS, as illustrated in FIGS. 1 and 2 .

The second side portion SS2 may extend from a second side of the frontportion FS. The second side portion SS2 may be bent along a secondbending line (BL2 of FIG. 3 ) on the second side of the front portion FSand may have a second curvature. The second curvature may be differentfrom the first curvature, but the present inventive concept is notlimited thereto. The second side of the front portion FS may be thelower side of the front portion FS, as illustrated in FIGS. 1 and 2 .

The third side portion SS3 may extend from a third side of the frontportion FS. The third side portion SS3 may be bent along a third bendingline (BL3 of FIG. 3 ) on the third side of the front portion FS and mayhave a third curvature. The third curvature may be the same as the firstcurvature, but the present inventive concept is not limited thereto. Thethird side of the front portion FS may be the right side of the frontportion FS, as illustrated in FIGS. 1 and 2 .

The fourth side portion SS4 may extend from a fourth side of the frontportion FS. The fourth side portion SS4 may be bent along a fourthbending line (BL4 of FIG. 3 ) on the fourth side of the front portion FSand may have a fourth curvature. The fourth curvature may be the same asthe second curvature, but the present inventive concept is not limitedthereto. The fourth side of the front portion FS may be the upper sideof the front portion FS, as illustrated in FIGS. 1 and 2 .

The first corner portion CS1 may be disposed between the first andsecond side portions SS1 and SS2. For example, the first corner portionCS1 may adjoin the lower side of the first side portion SS1 and the leftside of the second side portion SS2. The first corner portion CS1 may bea double-curvature region curved by the first and second curvatures ofthe first and second side portions SS1 and SS2. Accordingly, strain maybe applied to the first corner portion CS1 by bending forces from thefirst and second curvatures of the first and second side portions SS1and SS2.

The second corner portion CS2 may be disposed between the second andthird side portions SS2 and SS3. For example, the second corner portionCS2 may adjoin the right side of the second side portion SS2 and thelower side of the third side portion SS3. The second corner portion CS2may be a double-curvature region curved by the second and thirdcurvatures of the second and third side portions SS2 and SS3.Accordingly, strain may be applied to the second corner portion CS2 bybending forces from the second and third curvatures of the second andthird side portions SS2 and SS3.

The third corner portion CS3 may be disposed between the third andfourth side portions SS3 and SS4. For example, the third corner portionCS3 may adjoin the upper side of the third side portion SS3 and theright side of the fourth side portion SS4. The third corner portion CS3may be a double-curvature region curved by the third and fourthcurvatures of the third and fourth side portions SS3 and SS4.Accordingly, strain may be applied to the third corner portion CS3 bybending forces from the third and fourth curvatures of the third andfourth side portions SS3 and SS4.

The fourth corner portion CS4 may be disposed between the first andfourth side portions SS1 and SS4. For example, the fourth corner portionCS4 may adjoin the upper side of the first side portion SS1 and the leftside of the fourth side portion SS4. The fourth corner portion CS4 maybe a double-curvature region curved by the first and fourth curvaturesof the first and fourth side portions SS1 and SS4. Accordingly, strainmay be applied to the fourth corner portion CS4 by bending forces fromthe first and fourth curvatures of the first and fourth side portionsSS1 and SS4.

Each of the first, second, third, and fourth corner portions CS1, CS2,CS3, and CS4 may include cutout portions, which are defined byincisions, as illustrated in FIG. 6A, or may include island portions,which are defined by incisions, as illustrated in FIG. 24 .

FIG. 3 is a development view of the display device of FIG. 1 .

Referring to FIG. 3 , the display panel 300 may further include abending part BA and a pad part PA. For example, the display panel 300may include first, second, and third display areas DA1, DA2, and DA3,first and second non-display areas NDA1 and NDA2, the bending part BA,and the pad part PA.

The first, second, and third display areas DA1, DA2, and DA3 refer toregions that include pixels or emission areas, and thus, display animage. The first and second non-display areas NDA1 and NDA2 refer toregions that do not include pixels or emission areas, and thus, do notdisplay an image. Signal lines or panel-embedded driving circuits fordriving pixels or emission areas may be disposed in the first and secondnon-display areas NDA1 and NDA2. The first non-display area NDA1 and thesecond non-display area NDA2 may be collectively referred to as anon-display area NDA.

The first display area DA1, which is a main display area of the displaypanel 300, may include the front portion FS, part of the first sideportion SS1, part of the second side portion SS2, part of the third sideportion SS3, and part of the fourth side portion SS4. Here, the part ofthe first side portion SS1 refers to part of the first side portion SS1that extends from the first side of the front portion FS, the part ofthe second side portion SS2 refers to part of the second side portionSS2 that extends from the second side of the front portion FS, the partof the third side portion SS3 refers to part of the third side portionSS3 that extends from the third side of the front portion FS, and thepart of the fourth side portion SS4 refers to part of the fourth sideportion SS4 that extends from the fourth side of the front portion FS.The corners of the first display area DA1 may be formed to be rounded tohave a predetermined curvature.

The second display area DA2 may be an auxiliary display area thatassists the main display area. The resolution of the second display areaDA2 may be different from the resolution of the first display area DA1.For example, the resolution of the second display area DA2 may be lowerthan the resolution of the first display area DA1. That is, the numberof second emission areas per unit area of the second display area DA maybe smaller than the number of first emission areas per unit area of thefirst display area DA1. However, the present inventive concept is notlimited thereto. For example, according to exemplary embodiments, theresolution of the second display area DA2 may be substantially the sameas the resolution of the first display area DA1.

The second display area DA2 may be disposed on the outside of one of thecorners of the first display area DA1. At least part of the seconddisplay area DA2 may be disposed in at least one of the first, second,third, and fourth corner portions CS1, CS2, CS3, and CS4. Also, at leastpart of the second display area DA2 may be disposed in the front portionFS. Also, at least part of the second display area DA2 may be disposedin at least two of the first, second, third, and fourth side portionsSS1, SS2, SS3, and SS4.

For example, at least part of the second display area DA2 on the outsideof the lower left corner of the first display area DA1 may be disposedin the front portion FS, the first corner portion CS1, the first sideportion SS1, and the second side portion SS2, at least part of thesecond display area DA2 on the outside of the lower right corner of thefirst display area DA1 may be disposed in the front portion FS, thesecond corner portion CS2, the second side portion SS2, and the thirdside portion SS3, at least part of the second display area DA2 on theoutside of the upper right corner of the first display area DA1 may bedisposed in the front portion FS, the third corner portion CS3, thethird side portion SS3, and the fourth side portion SS4, and at leastpart of the second display area DA2 on the outside of the upper leftcorner of the first display area DA1 may be disposed in the frontportion FS, the fourth corner portion CS4, the first side portion SS1,and the fourth side portion SS4.

The third display area DA3 may be an auxiliary display area that assiststhe main display area. The resolution of the third display area DA3 maybe different from the resolution of the first display area DA1. Forexample, the resolution of the third display area DA3 may be lower thanthe resolution of the first display area DA1. That is, the number ofthird emission areas per unit area of the third display area DA3 may besmaller than the number of first emission areas per unit area of thefirst display area DA1. However, the present inventive concept is notlimited thereto. For example, according to exemplary embodiments, theresolution of the third display area DA3 may be substantially the sameas the resolution of the first display area DA1.

In an exemplary embodiment, the resolution of each of the first displayarea DA1, the second display area DA2, and the third display area DA3are different from one another. For example, in an exemplary embodiment,the resolution of the second display area DA2 is lower than theresolution of the first display area DA1, and the resolution of thethird display area DA3 is lower than the resolution of the seconddisplay area DA2.

The third display area DA3 may be disposed on the outside of the seconddisplay area DA2. Accordingly, the second display area DA2 may bedisposed between the first display area DA1 and the third display areaDA3. At least part of the third display area DA3 may be disposed in atleast one of the first, second, third, and fourth corner portions CS1,CS2, CS3, and CS4. Also, at least part of the third display area DA3 maybe disposed in at least two of the first, second, third, and fourth sideportions SS1, SS2, SS3, and SS4.

For example, at least part of the third display area DA3 on the outsideof the lower left corner of the first display area DA1 may be disposedin the first corner portion CS1, the first side portion SS1, and thesecond side portion SS2, at least part of the third display area DA3 onthe outside of the lower right corner of the first display area DA1 maybe disposed in the second corner portion CS2, the second side portionSS2, and the third side portion SS3, at least part of the third displayarea DA3 on the outside of the upper right corner of the first displayarea DA1 may be disposed in the third corner portion CS3, the third sideportion SS3, and the fourth side portion SS4, and at least part of thethird display area DA3 on the outside of the upper left corner of thefirst display area DA1 may be disposed in the fourth corner portion CS4,the first side portion SS1, and the fourth side portion SS4.

The first non-display area NDA1 may include part of the first sideportion SS1, part of the second side portion SS2, part of the third sideportion SS3, and part of the fourth side portion SS4. Here, the part ofthe first side portion SS1 refers to a left edge part of the first sideportion SS1, the part of the second side portion SS2 refers to a loweredge part of the second side portion SS2, the part of the third sideportion SS3 refers to a right edge part of the third side portion SS3,and the part of the fourth side portion SS4 refers to an upper edge partof the fourth side portion SS4.

The second non-display area NDA2 may be disposed on the outside of thethird display area DA3. At least part of the second non-display areaNDA2 may be disposed in at least one of the first, second, third, andfourth corner portions CS1, CS2, CS3, and CS4. Also, at least part ofthe second non-display area NDA2 may be disposed in at least two of thefirst, second, third, and fourth side portions SS1, SS2, SS3, and SS4.

For example, at least part of the second non-display area NDA2 on theoutside of the lower left corner of the first display area DA1 may bedisposed in the first corner portion CS1, the first side portion SS1,and the second side portion SS2, at least part of the second non-displayarea NDA2 on the outside of the lower right corner of the first displayarea DA1 may be disposed in the second corner portion CS2, the secondside portion SS2, and the third side portion SS3, at least part of thesecond non-display area NDA2 on the outside of the upper right corner ofthe first display area DA1 may be disposed in the third corner portionCS3, the third side portion SS3, and the fourth side portion SS4, and atleast part of the second non-display area NDA2 on the outside of theupper left corner of the first display area DA1 may be disposed in thefourth corner portion CS4, the first side portion SS1, and the fourthside portion SS4.

The bending part BA may extend from the lower side of the second sideportion SS2. The bending part BA may be disposed between the second sideportion SS2 and the pad part PA. The length of the bending part BA inthe first direction (or the X-axis direction) may be smaller than thelength of the second side portion SS2 in the first direction (or theX-axis direction). The bending part BA may be bent along a fifth bendingline BL5 below the second side portion SS2.

The pad part PA may extend from the lower side of the bending part BA.The length of the pad part PA in the first direction (or the X-axisdirection) may be greater than the length of the bending part BA in thefirst direction (or the X-axis direction). However, the presentinventive concept is not limited thereto. For example, according toexemplary embodiments, the length of the pad part PA in the firstdirection (or the X-axis direction) may be substantially the same as thelength of the bending part BA in the first direction (or the X-axisdirection). The pad part PA may be bent along a sixth bending line BL6below the bending part BA. The pad part PA may be disposed on the bottomsurface of the front portion FS.

An integrated driving circuit IDC and pads PAD may be disposed on thepad part PA. The integrated driving circuit IDC may be formed as anintegrated circuit (IC). The integrated driving circuit IDC may beattached on the pad part PA, for example, in a chip-on-glass (COG)manner, a chip-on-plastic (COP) manner, or an ultrasonic bonding manner.Alternatively, the integrated driving circuit IDC may be disposed on acircuit board provided on the pads PAD.

The integrated driving circuit IDC may be electrically connected to thepads PAD of the pad part PA. The integrated driving circuit IDC mayreceive digital video data and timing signals via the pads PAD of thepad part PA. The integrated driving circuit IDC may convert the digitalvideo data into analog data voltages and may output the analog datavoltages to data lines of the first, second, and third display areasDA1, DA2, and DA3.

A circuit board may be attached on the pads PAD of the pad part PA via,for example, an anisotropic conductive film. As a result, the pads PADof the pad part PA may be electrically connected to the circuit board.

As illustrated in FIG. 3 , the first, second, and third display areasDA1, DA2, and DA3 may be disposed in the front portion FS, the first,second, third, and fourth side portions SS1, SS2, SS3, and SS4, and thefirst, second, third, and fourth corner portions CS1, CS2, CS3, and CS4of the display panel 300. Accordingly, an image may be displayed notonly in the front portion FS and the first, second, third, and fourthside portions SS1, SS2, SS3, and SS4, but also in the first, second,third, and fourth corner portions CS1, CS2, CS3, and CS4 of the displaypanel 300.

FIG. 4 is a cross-sectional view of the display device of FIG. 1 . Forexample, FIG. 4 is a cross-sectional view taken along line V-V′ of FIG.2 .

Referring to FIG. 4 , the display panel 300 may include a substrate SUB,a display layer DISL, a sensor electrode layer SENL, a polarizing filmPF, and/or a cover window CW.

The display layer DISL may be disposed on the substrate SUB. The displaylayer DISL may include the first, second, and third display areas DA1,DA2, and DA3 and the first and second non-display areas NDA1 and NDA2.In the first, second, and third display areas DA1, DA2, and DA3 of thedisplay layer DISL, not only emission areas, but also scan lines, datalines, and power lines for driving light-emitting elements may bedisposed. In the first and second non-display areas NDA1 and NDA2 of thedisplay layer DISL, a scan driving circuit, which outputs scan signalsto the scan lines, and fan-out lines, which connect the data lines andthe integrated driving circuit IDC, may be disposed.

The display layer DISL may include a thin-film transistor (TFT) layer(TFTL of FIG. 8 ) in which TFTs are formed, a light-emitting elementlayer (EML of FIG. 8 ) in which light-emitting elements that emit lightare disposed, and an encapsulation layer (TFEL of FIG. 8 ) which isencapsulates the light-emitting element layer.

The sensor electrode layer SENL may be disposed on the display layerDISL. The sensor electrode layer SENL may include a plurality of sensorelectrodes. The sensor electrode layer SENL may detect touch input froma person or an object using the sensor electrodes.

The polarizing film PF may be disposed on the sensor electrode layerSENL. The polarizing film PF may include a first base member, a linearpolarizing plate, one or more phase retarder films such as aquarter-wave (λ/4) plate and/or a half-wave (λ/2) plate, and a secondbase member. For example, the first base member, the linear polarizingplate, a λ/4 plate, a λ/2 plate, and the second base member may besequentially stacked on the sensor electrode layer SENL.

The cover window CW may be disposed on the polarizing film PF. The coverwindow CW may be attached on the polarizing film PF via a transparentadhesive member such as, for example, an optically clear adhesive (OCA)or an optically clear resin (OCR). The cover window CW may include aninorganic material such as, for example, glass, or an organic materialsuch as, for example, plastic or a polymer material.

The bending part BA may be bent along the fifth bending line BL5 to bedisposed on the bottom surface of the second side portion SS2. The padpart PA may be bent along the sixth bending line BL6 to be disposed onthe bottom surface of the front portion FS. The pad part PA may beattached on the bottom surface of the front portion FS via an adhesivemember ADH. The adhesive member ADH may be, for example, a pressuresensitive adhesive (PSA).

FIG. 5 is a layout view illustrating an exemplary sensor electrode layerof the display panel of FIG. 4 .

According to exemplary embodiments, sensor electrodes SE of the sensorelectrode layer SENL may include two types of electrodes, for example,driving electrodes TE and sensing electrodes RE, and may be driven in amutual-capacitance manner by applying driving signals to the drivingelectrodes TE and detecting voltages that the mutual capacitances of thesensing electrodes RE are charged with. However, the present inventiveconcept is not limited thereto.

For convenience of illustration, FIG. 5 illustrates only sensorelectrodes (TE and RE), dummy patterns DE, sensor lines SL (TL1, TL2,and RL), and sensor pads (TP1 and TP2).

Referring to FIG. 5 , the sensor electrode layer SENL includes a touchsensor area TSA in which touch input from a user is detected, and atouch peripheral area TPA which is disposed on the periphery of thetouch sensor area TSA. The touch sensor area TSA may overlap the first,second, and third display areas DA1, DA2, and DA3 of FIG. 3 , and thetouch peripheral area TPA may overlap the first and second non-displayareas NDA1 and NDA2 of FIG. 3 .

The touch sensor area TSA may include the sensor electrodes SE and dummypatterns DE. The sensor electrodes SE may be electrodes for formingmutual capacitances to detect a touch input from the user or an object.

The sensor electrodes SE may include driving electrodes TE and sensingelectrodes RE. The sensing electrodes RE may be arranged substantiallyin parallel to one another in the first direction (or the X-axisdirection) and in the second direction (or the Y-axis direction). Thesensing electrodes RE may be electrically connected in the firstdirection (or the X-axis direction). Each pair of adjacent sensingelectrodes RE in the first direction (or the X-axis direction) may beconnected. Each pair of adjacent sensing electrodes RE in the seconddirection (or the Y-axis direction) may be electrically isolated.

The driving electrodes TE may be arranged substantially in parallel toone another in the first direction (or the X-axis direction) and in thesecond direction (or the Y-axis direction). Each pair of adjacentdriving electrodes TE in the first direction (or the X-axis direction)may be electrically isolated. Each pair of adjacent driving electrodesTE in the second direction (or the Y-axis direction) may be electricallyconnected. For example, as illustrated in FIG. 7 , pairs of adjacentdriving electrodes TE in the second direction (or the Y-axis direction)may be connected via first connecting parts BE1.

The dummy patterns DE may be surrounded by the driving electrodes TE orthe sensing electrodes RE. The dummy patterns DE may be electricallyisolated from the driving electrodes TE or the sensing electrodes RE.The dummy patterns DE may be spaced apart from the driving electrodes TEor the sensing electrodes RE. The dummy patterns DE may be electricallyfloated.

FIG. 5 illustrates that the driving electrodes TE, the sensingelectrodes RE, and the dummy patterns DE have a rhombus shape in a planview. However, the present inventive concept is not limited thereto. Forexample, according to exemplary embodiments, the driving electrodes TE,the sensing electrodes RE, and the dummy patterns DE may have variousother shapes such as a rectangular shape other than a rhombus shape, anon-tetragonal polygonal shape, a circular shape, or an elliptical shapein a plan view.

The sensor lines SL (TL1, TL2, and RL) may be disposed in the touchperipheral area TPA. The sensor lines SL (TL1, TL2, and RL) may includethe sensing lines RL, which are connected to the sensing electrodes RE,and the first driving lines TL1 and the second driving lines TL2, whichare connected to the driving electrodes TE.

Sensing electrodes RE disposed on one side of the touch sensor area TSAmay be connected in a one-to-one correspondence to the sensing lines RL.For example, referring to FIG. 5 , sensing electrodes RE that areelectrically connected in the first direction (or the X-axis direction)at the right end of the touch sensor area TSA may be connected to thesensing lines RL. The sensing lines RL may be connected in a one-to-onecorrespondence to second sensor pads TP2. Accordingly, a touch drivingcircuit can be electrically connected to the sensing electrodes RE.

Driving electrodes TE disposed on one side of the touch sensor area TSAmay be connected in a one-to-one correspondence to the first drivinglines TL1, and driving electrodes TE disposed on the other side of thetouch sensor area TSA may be connected in a one-to-one correspondence tothe second driving lines TL2. For example, referring to FIG. 5 , drivingelectrodes TE disposed at the lower end of the touch sensing area TSAmay be connected to the first driving line TL1, and driving electrodesTE disposed at the upper end of the touch sensing area TSA may beconnected to the second driving line TL2. The second driving lines TL2may be connected to the driving electrodes TE on the upper side of thetouch sensor area TSA via the outer left side of the touch sensor areaTSA.

The first driving lines TL1 and the second driving lines TL2 may beconnected in a one-to-one correspondence to first sensor pads TP1.Accordingly, the touch driving circuit can be electrically connected tothe driving electrodes TE. Since the driving electrodes TE are connectedto driving lines (TL1 and TL2) on either side of the touch sensor areaTSA and thus receive touch driving signals, differences, which may occurdue to RC delays in touch driving signals, can be prevented from beinggenerated between the touch driving signals applied to drivingelectrodes TE disposed in the lower part of the touch sensor area TSAand the touch driving signals applied to driving electrodes TE disposedin the upper part of the touch sensor area TSA.

A first sensor pad area TPA1 where the first sensor pads TP1 aredisposed may be provided on one side of a display pad area DPA wheredisplay pads DP are disposed. A second sensor pad area TPA2 where thesecond sensor pads TP2 are disposed may be provided on the other side ofthe display pad area DPA. The display pads DP may be connected to thedata lines of the display panel 300.

The display pad area DPA, the first sensor pad area TPA1, and the secondsensor pad area TPA2 may correspond to the pads PAD of the display panel300 of FIG. 3 . A circuit board may be disposed on the display pads DP,the first sensor pads TP1, and the second sensor pads TP2. The displaypads DP, the first sensor pads TP1, and the second sensor pads DP2 maybe electrically connected to the circuit board via a low-resistance,high-reliability material such as, for example, an ACF or an SAP.Accordingly, the display pad area DPA, the first sensor pad area TPA1,and the second sensor pad area TPA2 can be electrically connected to thetouch driving circuit, which is disposed on the circuit board.

FIG. 6A is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept. For example, FIG.6A is an enlarged layout view illustrating an example of area A of FIG.3 , and illustrates parts of the first, second, and third display areasDA1, DA2, and DA3 and part of the second non-display area NDA2 near thefirst corner portion CS1 of FIG. 3 .

Referring to FIG. 6A, an intersecting point CRP between the first andsecond bending lines BL1 and BL2 may be disposed in the first displayarea DA1. In this case, the first display area DA1 may be disposed inthe front portion FS, the first and second side portions SS1 and SS2,and the first corner portion CS1, the second display area DA2 may bedisposed in the first and second side portions SS1 and SS2 and the firstcorner portion CS1, the third display area DA3 may be disposed in thefirst and second side portions SS1 and SS2 and the first corner portionCS1, and the second non-display area NDA2 may be disposed in the firstand second side portions SS1 and SS2 and the first corner portion CS1.The first corner portion CS1 may correspond to the lower left quadrantdefined by the intersection of the first bending line BL1 and the secondbending line BL2. For example, in an exemplary embodiment, the firstcorner portion CS1 may refer to the part of the display panel 300disposed in the lower left quadrant defined by the intersection of thefirst bending line BL1 and the second bending line BL2.

The first display area DA1 may include first emission areas. Also, sincethe first display area DA1 overlaps the touch sensor area TSA, the firstdisplay area DA1 may include the sensor electrodes SE. As illustrated inFIG. 5 , the sensor electrodes SE may include the driving electrodes TEand the sensing electrodes RE. The first emission areas, the drivingelectrodes TE, and the sensing electrodes RE of the first display areaDA1 will be described in further detail below with reference to FIGS. 7and 8 .

The second display area DA2 may be disposed on the outside of the firstdisplay area DA1. The second display area DA2 may include secondemission areas and first sensor lines SL1. The first sensor lines SL1may be defined as being sensor lines disposed in the second display areaDA2 and connected to at least some of the sensor electrodes SE of thefirst display area DA1. For example, the first sensor lines SL1 mayinclude first driving lines TL1 which are connected to drivingelectrodes TE in part of the first display area DA1 that adjoins thesecond display area DA2, and second driving lines TL2 which areconnected to driving electrodes TE in the upper part of the firstdisplay area DA1. The first sensor lines SL1 may be disposed not only inthe second display area DA2, but also in the first non-display area NDA1and/or the second non-display area NDA2, which is disposed adjacent tothe first and second display areas DA1 and DA2.

The third display area DA3 may be disposed on the outside of the seconddisplay area DA2. The third display area DA3 may include cutout portionsCP which are isolated from one another, and third emission areas whichare disposed in the cutout portions CP.

First ends of the cutout portions CP may be connected to the seconddisplay area DA2, and second ends of the cutout portions CP may beconnected to the second non-display area NDA2. In an exemplaryembodiment, the cutout portions CP may have a substantially trapezoidalshape in a plan view. The width of the cutout portions CP may graduallyincrease or decrease from the second display area DA2 to the secondnon-display area NDA2. Alternatively, in an exemplary embodiment, thecutout portions CP may have a rectangular shape in a plan view.

The width of a middle part of the third display area DA3 may be greaterthan the width of both ends of the third display area DA3. For example,the third display area DA3 may be formed in the shape of a crescent moonin a plan view. Accordingly, each pair of adjacent cutout portions CP inthe third display area DA3 may have different sizes. For example, thesize of the cutout portions CP may gradually decrease from the center ofthe third display area DA3 to either end of the third display area DA3.

The cutout portions CP may be formed by cutting the display panel 300with light emitted by a laser. Accordingly, first cutout gaps CG1 may beformed between the cutout portions CP. Since the third emission areasare disposed in the cutout portions CP, the maximum width of the cutoutportions CP may be greater than the maximum width of the first cutoutgaps CG1.

The cutout portions CP and the third emission areas of the third displayarea DA3 will be described in further detail below with reference toFIGS. 15 and 16 .

In a case in which a non-display area that does not display an image isdisposed between the first and third display areas DA1 and DA3, a usermay recognize the existence of the non-display area between the firstand third display areas DA1 and DA3 when an image is displayed in thefirst and third display areas DA1 and DA3. That is, the user mayrecognize parts of the image displayed in the first and third displayareas DA1 and DA3 as being apart from each other. However, according toexemplary embodiments, since the second display area DA2, which includessecond emission areas, is disposed between the first and third displayareas DA1 and DA3, as illustrated in FIG. 6A, a non-display area betweenthe first and third display areas DA1 and DA3 can be prevented frombeing visible to the user. The second emission areas of the seconddisplay area DA2 will be described in further detail below withreference to FIGS. 9 through 14 .

The second non-display area NDA2 may be disposed on the outside of thethird display area DA3. The second non-display area NDA2 may includecutout connecting portions CBP which are connected to the cutoutportions CP, and a cutout common pattern CCP which is connected incommon to the cutout connecting portions CBP. First ends of the cutoutconnecting portions CBP may be connected to the cutout portions CP, andsecond ends of the cutout connecting portions CBP may be connected tothe cutout common pattern CCP. The cutout common pattern CCP may bedisposed on an outermost side of the second non-display area NDA2.

The cutout connecting portions CBP may be formed by cutting the displaypanel 300 via light emitted by a laser. Second cutout gaps CG2 may beformed between the cutout connecting portions CBP.

The maximum width of the cutout connecting portions CBP may be greaterthan or smaller than the maximum width of the second cutout gaps CG2.The cutout connecting portions CBP may be formed in a winding shapeincluding multiple bent portions. Thus, the cutout connecting portionsCBP may be designed to be suitable for stretching or contraction.

Since the cutout portions CP, which are disposed in the third displayarea DA3, and the cutout connecting portions CBP, which are disposed inthe second non-display area NDA2, are designed to be suitable forstretching or contraction, as illustrated in FIG. 6A, strain and stressapplied to the emission areas of the third display area DA3 by doublecurvature can be reduced.

Parts of the first, second, and third display areas DA1, DA2, and DA3and part of the second non-display area NDA2, disposed in each of thesecond through fourth corner portions CS2 through CS4 of FIG. 3 , may besimilar to those illustrated in FIG. 6A. However, the part of the seconddisplay area DA2 disposed in the second corner portion CS2 may differfrom the part of the second display area DA2 disposed in the firstcorner portion CS1 in that the first sensor lines SL1 include thesensing lines RL, which are connected to the sensing electrodes RE inthe first display area DA1, instead of the second driving lines TL2.Also, the part of the second display area DA2 disposed in the thirdcorner portion CS3 may differ from the part of the second display areaDA2 disposed in the first corner portion CS1 in that the first sensorlines SL1 includes the sensing lines RL and the first sensor lines SL1do not include the first driving lines TL1. Also, the part of the seconddisplay area DA2 disposed in the fourth corner portion CS4 may differfrom the part of the second display area DA2 disposed in the firstcorner portion CS1 in that the first sensor lines SL1 include the seconddriving lines and do not include the first driving lines TL1 thereexists no first sensor lines SL1.

In an exemplary embodiment, the display device 10 may include thedisplay panel 300, which may include the first display area DA1, thesecond display area DA2, and the third display area DA3. The firstdisplay area DA1 may include a plurality of first emission areas (see,e.g., EA1 in FIG. 7 ) and a plurality of sensor electrodes SE, thesecond display area DA2 may include a plurality of second emission areas(see, e.g., EA2 in FIGS. 9-14 ) and a plurality of first sensor linesSL1 electrically connected to at least some of the sensor electrodes SE,and the third display area DA3 may include a plurality of third emissionareas (see, e.g., EA3 in FIG. 15 ) and a plurality of third sensor lines(see, e.g., SL3 in FIG. 22 ) connected to at least some of the sensorelectrodes SE. The second display area DA2 may be disposed in a cornerportion (e.g., CS1) of the display device 10 between the first displayarea DA1 and the third display area DA3.

FIG. 6B is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept. FIG. 6C is alayout view illustrating first, second, and third display areas and asecond non-display area of a display panel according to an exemplaryembodiment of the present inventive concept. FIGS. 6B and 6C areenlarged layout views illustrating other examples of the area A of FIG.3 . For convenience of explanation, FIGS. 6B and 6C will be describedhereinafter with the focus being primarily on the differences comparedto FIG. 6A, and a further description of elements and technical aspectspreviously described may be omitted.

Referring to FIG. 6B, an intersecting point CRP between first and secondbending lines BL1 and BL2 may be disposed at the boundary between firstand second display areas DA1 and DA2. Alternatively, referring to FIG.6C, the intersecting point CRP between the first and second bendinglines BL1 and BL2 may be disposed at the boundary between the seconddisplay area DA2 and a third display area DA3. Alternatively, in anexemplary embodiment, the intersecting point CRP between the first andsecond bending lines BL1 and BL2 may be disposed in the second or thirddisplay area DA2 or DA3.

FIG. 7 is a layout view illustrating the sensor electrodes and the firstemission areas in the first display area of FIG. 6A.

Referring to FIG. 7 , the driving electrodes TE, the sensing electrodesRE, and the dummy patterns DE may be disposed in the same layer andspaced apart from one another. That is, gaps may be formed between thedriving electrodes TE and the sensing electrodes RE.

The dummy patterns DE may also be disposed in the same layer as thedriving electrodes TE and the sensing electrodes RE. That is, gaps maybe formed between the driving electrodes TE and the dummy patterns DEand between the sensing electrodes RE and the dummy patterns DE.

The first connecting parts BE1 may be disposed in a different layer fromthe driving electrodes TE and the sensing electrodes RE. The firstconnecting parts BE1 may be bent at least once. FIG. 7 illustrates thateach of the first connecting parts BE1 is formed in the shape of anangle bracket (e.g., “<” or “>”), but the planar shape of the firstconnecting parts BE1 is not particularly limited. Since the pairs ofadjacent driving electrodes TE in the second direction (or the Y-axisdirection) are connected by multiple first connecting parts BE1, thedriving electrodes TE can be stably connected in the second direction(or the Y-axis direction), even if one of the first connecting parts BE1is disconnected. FIG. 7 illustrates that two adjacent driving electrodesTE are connected by one first connecting part BE1, but the number offirst connecting parts BE1 is not particularly limited.

The first connecting parts BE1 may be disposed in a different layer fromthe driving electrodes TE and the sensing electrodes RE. The firstconnecting parts BE1 may overlap, in the third direction (or the Z-axisdirection), their respective pairs of adjacent driving electrodes TE inthe second direction (or the Y-axis direction). The first connectingparts BE1 may overlap the sensing electrodes RE in the third direction(or the Z-axis direction). One side of each of the first connectingparts BE1 may be connected to one of a pair of adjacent drivingelectrodes TE in the second direction (or the Y-axis direction) via afirst touch contact hole TCNT1, and the other side of each of the firstconnecting parts BE1 may be connected to the other driving electrode TEvia another first touch contact hole TCNT1.

Due to the presence of the first connecting parts BE1, the drivingelectrodes TE and the sensing electrodes RE can be electrically isolatedat the intersections therebetween. As a result, mutual capacitances canbe formed between the driving electrodes TE and the sensing electrodesRE.

The driving electrodes TE, the sensing electrodes RE, and the firstconnecting parts BE1 may be formed in a mesh or fishnet structure in aplan view. Also, the dummy patterns DE may be formed in a mesh orfishnet structure in a plan view. Accordingly, in an exemplaryembodiment, the driving electrodes TE, the sensing electrodes RE, thefirst connecting parts BE1, and the dummy patterns DE do not overlapfirst emission areas EA1. Thus, the luminance of light emitted from thefirst emission areas EA1 can be prevented from decreasing due to beingblocked by the driving electrodes TE, the sensing electrodes RE, thefirst connecting parts BE1, and the dummy patterns DE.

Each of the first emission areas EA1 may include first, second, third,and fourth sub-emission areas SEA1, SEA2, SEA3, and SEA4, which emitlight of first, second, third, and fourth colors, respectively. Forexample, the first color may be red, the second and fourth colors may begreen, and the third color may be blue.

The first sub-emission areas SEA1, second sub-emission areas SEA2, thirdsub-emission areas SEA3, and fourth sub-emission areas SEA4 may have arhombus or rectangular shape in a plan view. However, the presentinventive concept is not limited thereto. For example, according toexemplary embodiments, the first sub-emission areas SEA1, the secondsub-emission areas SEA2, the third sub-emission areas SEA3, and thefourth sub-emission areas SEA4 may have various other shapes such as anon-tetragonal polygonal shape, a circular shape, or an elliptical shapein a plan view. FIG. 7 illustrates that among the first sub-emissionareas SEA1, the second sub-emission areas SEA2, the third sub-emissionareas SEA3, and the fourth sub-emission areas SEA4, the thirdsub-emission areas SEA3 are largest in size and the second sub-emissionareas SEA2 and the fourth sub-emission areas SEA4 are smallest in size.However, the present inventive concept is not limited thereto.

The second sub-emission areas SEA2 and the fourth sub-emission areasSEA4 may be arranged in odd-numbered rows. The second sub-emission areasSEA2 and the fourth sub-emission areas SEA4 may be arranged adjacent toone another in the first direction (or the X-axis direction) in each ofthe odd-numbered rows. The second sub-emission areas SEA2 and the fourthsub-emission areas SEA4 may be alternately arranged in each of theodd-numbered rows. Each of the second sub-emission areas SEA2 may haveshort sides extending in a fifth direction DR5 and long sides (e.g.,relatively longer than the short sides) in a fourth direction DR4. Eachof the fourth sub-emission areas SEA4 may have long sides extending inthe fifth direction DR5 and short sides (e.g., relatively shorter thanthe long sides) extending in the fourth direction DR4. The fifthdirection DR5 may be a direction inclined at an angle of about 45°between the first direction (or the X-axis direction) and the seconddirection (or the Y-axis direction). The fourth direction DR4 may be adirection that is orthogonal to the fifth direction DR5.

The first sub-emission areas SEA1 and the third sub-emission areas SEA3may be arranged in even-numbered rows. The first sub-emission areas SEA1and the third sub-emission areas SEA3 may be arranged adjacent to oneanother in the first direction (or the X-axis direction) in each of theeven-numbered rows. The first sub-emission areas SEA1 and the thirdsub-emission areas SEA3 may be alternately arranged in each of theeven-numbered rows.

The second sub-emission areas SEA2 and the fourth sub-emission areasSEA4 may be arranged in odd-numbered columns. The second sub-emissionareas SEA2 and the fourth sub-emission areas SEA4 may be arrangedadjacent to one another in the second direction (or the Y-axisdirection) in each of the odd-numbered columns.

The first sub-emission areas SEA1 and the third sub-emission areas SEA3may be arranged in even-numbered columns. The first sub-emission areasSEA1 and the third sub-emission areas SEA3 may be arranged adjacent toone another in each of the even-numbered columns. The first sub-emissionareas SEA1 and the third sub-emission areas SEA3 may be alternatelyarranged in each of the even-numbered columns.

FIG. 8 is a cross-sectional view taken along line I-I′ of FIG. 7 .

Referring to FIG. 8 , the display layer DISL, which includes the TFTlayer TFTL, the light-emitting element layer EML, and the encapsulationlayer TFEL, may be disposed on the substrate SUB, and the sensorelectrode layer SENL, which includes the sensor electrodes SE, may bedisposed on the display layer DISL.

A first buffer film BF1 may be disposed on a first surface of thesubstrate SUB, and a second buffer film BF2 may be disposed on the firstbuffer film BF1. The first and second buffer films BF1 and BF2 mayprotect TFTs ST of the TFT layer TFTL and a light-emitting layer 172 ofthe light-emitting element layer EML from moisture that may penetratethrough the substrate SUB, which may be susceptible to moisture. Forexample, each of the first and second buffer films BF1 and BF2 may beformed as a multilayer film in which one or more inorganic film selectedfrom among, for example, a silicon nitride layer, a silicon oxynitridelayer, a silicon oxide layer, a titanium oxide layer, and an aluminumoxide layer are alternately stacked. In an exemplary embodiment, one ofthe first and second buffer films BF1 and BF2 may be omitted.

First light-blocking layers BML may be disposed on the first buffer filmBF1. The first light-blocking layers BML may be formed as a single ormultilayer film including, for example, molybdenum (Mo), aluminum (Al),chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd),copper (Cu), or an alloy thereof. Alternatively, the firstlight-blocking layers BML may be an organic film including a blackpigment.

Active layers ACT of the TFTs ST may be disposed on the second bufferfilm BF2. The active layers ACT may include, for example,polycrystalline silicon, monocrystalline silicon, low-temperaturepolycrystalline silicon (LTPS), amorphous silicon, or an oxidesemiconductor material. In a case in which the active layers ACT includepolycrystalline silicon or an oxide semiconductor material, ion dopedregions of the active layers ACT may be conductive areas havingconductivity.

The active layers ACT may overlap the first light-blocking layers BML inthe third direction (or the Z-axis direction). Since light incidentthrough the substrate SUB can be blocked by the first light-blockinglayers BML, leakage currents can be prevented from flowing into theactive layers ACT due to the incident light.

A gate insulating film 130 may be formed on the active layers ACT. Thegate insulating film 130 may be formed as an inorganic film such as, forexample, a silicon nitride layer, a silicon oxynitride layer, a siliconoxide layer, a titanium oxide layer, or an aluminum oxide layer.

Gate electrodes G of the TFTs ST may be disposed on the gate insulatingfilm 130. The gate electrodes G of the TFTs ST may overlap the activelayers ACT in the third direction (or the Z-axis direction). Parts ofthe active layers ACT that overlap the gate electrodes G in the thirddirection (or the Z-axis direction) may be channel areas CHA. The gateelectrodes G may be formed as single or multilayer films including, forexample, Mo, Al, Cr, Au, Ti, Ni, Nd, Cu, or an alloy thereof.

A first interlayer insulating film 141 may be disposed on the gateelectrodes G. The first interlayer insulating film 141 may be formed asan inorganic film such as, for example, a silicon nitride layer, asilicon oxynitride layer, a silicon oxide layer, a titanium oxide layer,or an aluminum oxide layer. The first interlayer insulating film 141 mayinclude a plurality of inorganic films.

Capacitor electrodes CAE may be disposed on the first interlayerinsulating film 141. The capacitor electrodes CAE may overlap the gateelectrodes G in the third direction (or the Z-axis direction). Thecapacitor electrodes CAE may be formed as single or multilayer filmsincluding, for example, Mo, Al, Cr, Au, Ti, Ni, Nd, Cu, or an alloythereof.

A second interlayer insulating film 142 may be disposed on the capacitorelectrodes CAE. The second interlayer insulating film 142 may be formedas an inorganic film such as, for example, a silicon nitride layer, asilicon oxynitride layer, a silicon oxide layer, a titanium oxide layer,or an aluminum oxide layer. The second interlayer insulating film 142may include a plurality of inorganic films.

First electrodes S and second electrodes D of the TFTs ST may bedisposed on the second interlayer insulating film 142. The firstelectrodes S and the second electrodes D may be formed as single ormultilayer films including, for example, Mo, Al, Cr, Au, Ti, Ni, Nd, Cu,or an alloy thereof. The first electrodes S and the second electrodes Dof the TFTs ST may correspond to source and drain electrodes of the TFTsST.

The first electrodes S of the TFTs ST may be connected to firstconductive areas COA1, which are disposed on first sides of the channelareas CHA of the active layers ACT, through contact holes that penetratethe gate insulating film 130, the first interlayer insulating film 141,and the second interlayer insulating film 142. The second electrodes Dof the TFTs ST may be connected to second conductive areas COA2, whichare disposed on second sides of the channel areas CHA of the activelayers ACT, through contact holes that penetrate the gate insulatingfilm 130, the first interlayer insulating film 141, and the secondinterlayer insulating film 142.

A first organic film 150 for planarizing height differences formed bythe TFTs ST may be disposed on the first electrodes S and the secondelectrodes D. The first organic film 150 may be formed as an organicfilm including, for example, an acrylic resin, an epoxy resin, aphenolic resin, a polyamide resin, or a polyimide resin.

First connecting electrodes ANDE1 may be disposed on the first organicfilm 150. The first connecting electrodes ANDE1 may be connected to thesecond electrodes D of the TFTs ST through contact holes that penetratethe first organic film 150. The first connecting electrodes ANDE1 may beformed as single or multilayer films including, for example, Mo, Al, Cr,Au, Ti, Ni, Nd, Cu, or an alloy thereof.

A second organic film 160 may be disposed on the first connectingelectrodes ANDE1. The second organic film 160 may be formed as anorganic film including, for example, an acrylic resin, an epoxy resin, aphenolic resin, a polyamide resin, or a polyimide resin.

FIG. 8 illustrates that the TFTs ST are formed as top-gate TFTs in whichthe gate electrodes G are disposed above the active layers ACT. However,the present inventive concept is not limited thereto. For example,according to exemplary embodiments, the TFTs ST may be formed asbottom-gate TFTs in which the gate electrodes G are disposed below theactive layers ACT or as double-gate TFTs in which the gate electrodes Gare disposed both above and below the active layers ACT.

The light-emitting element layer EML is disposed on the TFT layer TFTL.The light-emitting element layer EML may include light-emitting elements170 and a bank 180.

Each of the light-emitting elements 170 may include a firstlight-emitting electrode 171, a light-emitting layer 172, and a secondlight-emitting electrode 173. Each of the first emission areas EA1 maybe a region in which the first light-emitting electrode 171, thelight-emitting layer 172, and the second light-emitting electrode 173are sequentially stacked so that holes from the first light-emittingelectrode 171 and electrons from the second light-emitting electrode 173can combine in the light-emitting layer 172 to emit light. In this case,the first light-emitting electrode 171 may be an anode electrode, andthe second light-emitting electrode 173 may be a cathode electrode.

The first light-emitting electrodes 171 may be formed on the secondorganic film 160. The first light-emitting electrodes 171 may beconnected to the first connecting electrodes ANDE1 via contact holesthat penetrate the second organic film 160.

In a top emission structure in which the light-emitting elements 170emit light in a direction from the light-emitting layers 172 to thesecond light-emitting electrode 173 of the light-emitting elements 170,the first light-emitting electrodes 171 may be formed as single layersof, for example, Mo, Ti, Cu, or Al, or may be formed as, for example,stacks of Al and Ti (e.g., Ti/Al/Ti), stacks of Al and ITO (e.g.,ITO/Al/ITO), layers of a silver (Ag)-palladium (Pd)-copper (Cu) (APC)alloy, or stacks of an APC alloy and ITO (e.g., ITO/APC/ITO).

The bank 180 defines the first emission areas EA1. To this end, the bank180 may be formed on the second organic film 160 to expose parts of thefirst light-emitting electrodes 171 of the light-emitting elements 170.The bank 180 may cover the edges of each of the first light-emittingelectrodes 171. The bank 180 may be disposed in contact holes thatpenetrate the second organic film 160. As a result, the contact holes ofthe second organic film 160 may be filled with the bank 180. The bank180 may be formed as an organic film including, for example, an acrylicresin, an epoxy resin, a phenolic resin, a polyamide resin, or apolyimide resin.

The light-emitting layers 172 are formed on the first light-emittingelectrodes 171. The light-emitting layers 172 may include an organicmaterial that emits light of a predetermined color. For example, thelight-emitting layers 172 may each include a hole transport layer, anorganic material layer, and an electron transport layer. In thisexample, the organic material layer may include a host and a dopant. Theorganic material layer may include a material capable of emitting lightof a predetermined color and may be formed of a phosphorescent materialor a fluorescent material.

For example, the organic material layers of light-emitting layers 172formed in the first sub-emission areas SEA1, which emit light of thefirst color, may be formed of a phosphorescent material including a hostmaterial including, for example, 4,4′-bis(N-carbazole)-1,1′-biphenyl(CBP) or 1,3-bis(carbazol-9-yl)benzene (mCP), and at least one dopantmaterial selected from among, for example,bis(1-phenylisoquinoline)acetylacetonate iridium (PIQIr(acac)),bis(1-phenylquinoline)acetylacetonate iridium (PQIr(acac)),tris(1-phenylquinoline)iridium (PQIr), and platinum octaethylporphyrin(PtOEP). In an exemplary embodiment, the organic material layers oflight-emitting layers 172 formed in the first sub-emission areas SEA1may be formed of a fluorescent material including, for example,PBD:Eu(DBM)₃(Phen) or perylene. However, the present inventive conceptis not limited to these examples.

The organic material layers of light-emitting layers 172 formed in thesecond sub-emission areas SEA2, which emit light of the second color,may be formed of, for example, a phosphorescent material including ahost material including, for example, CBP or mCP, and a dopant materialincluding, for example, fac-tris(2-phenylpyridine)iridium (Ir(ppy)₃). Inan exemplary embodiment, the organic material layers of thelight-emitting layers 172 formed in the second sub-emission areas SEA2may be formed of a fluorescent material including, for example,tris(8-hydroxyquinolino)aluminum (Alq₃). However, the present inventiveconcept is not limited to these examples.

The organic material layers of light-emitting layers 172 formed in thethird sub-emission areas SEA3, which emit light of the third color, maybe formed of a phosphorescent material including a host materialincluding, for example, CBP or mCP, and a dopant material including, forexample, (4,6-F₂ppy)₂Irpic or L2BD111. However, the present inventiveconcept is not limited to this example.

The second light-emitting electrode 173 may be formed on thelight-emitting layers 172. The second light-emitting electrode 173 maycover the light-emitting layers 172. The second light-emitting electrode173 may be a common layer formed in common for all display pixels. Acapping layer may be formed on the second light-emitting electrode 173.

In the top emission structure, the second light-emitting electrode 173may be formed of a transparent conductive oxide (TCO) material such as,for example, ITO or IZO, or a translucent metallic material such as, forexample, magnesium (Mg), Ag, or an alloy thereof. In a case in which thesecond light-emitting electrode 173 is formed of a translucent metallicmaterial, the emission efficiency of the light-emitting elements 170 canbe improved due to micro-cavities.

The light-emitting layers 172 may be disposed on the top surfaces of thefirst light-emitting electrodes 171 and on inclined surfaces of the bank180. The second light-emitting electrodes 173 may be disposed on the topsurfaces of the light-emitting layers 172 and on the inclined surfacesof the bank 180.

The encapsulation layer TFEL may be formed on the light-emitting elementlayer EML. The encapsulation layer TFEL may include at least oneinorganic film, which may prevent the penetration of oxygen or moistureinto the light-emitting element layer EML. The encapsulation layer TFELmay also include at least one organic film, which may protect thelight-emitting element layer EML from foreign materials such as dust.The inorganic film may be formed as a multilayer film in which one ormore inorganic films selected from among, for example, a silicon nitridelayer, a silicon oxynitride layer, a silicon oxide layer, a titaniumoxide layer, and an aluminum oxide layer are alternately stacked. Theorganic film may be formed of, for example, an acrylic resin, an epoxyresin, a phenolic resin, a polyamide resin, or a polyimide resin.

In a case in which a second substrate is provided on the light-emittingelement layer EML instead of the encapsulation layer TFEL, the spacebetween the light-emitting element layer EML and the second substratemay be empty in a vacuum or may have a filler film disposed therein. Thefiller film may be, for example, an epoxy filler film or a siliconefiller film.

The sensor electrode layer SENL is disposed on the encapsulation layerTFEL. The sensor electrode layer SENL may include light-blocking filmsand the sensor electrodes SE. As described above, the sensor electrodesSE may include driving electrodes TE and sensing electrodes RE.

A third buffer film BF3 may be disposed on the encapsulation layer TFEL.The third buffer film BF3 may be a layer having insulation and opticalfunctions. The third buffer film BF3 may include at least one inorganicfilm. For example, the third buffer film BF3 may be formed as amultilayer film in which one or more inorganic films selected fromamong, for example, a silicon nitride layer, a silicon oxynitride layer,a silicon oxide layer, a titanium oxide layer, and an aluminum oxidelayer are alternately stacked.

The first connecting parts BE1 may be disposed on the third buffer filmBF3. The first connecting parts BE1 may be formed as single layers of,for example, Mo, Ti, Cu, or Al, or may be formed as, for example, stacksof Al and Ti (e.g., Ti/Al/Ti), stacks of Al and ITO (e.g., ITO/Al/ITO),layers of an APC alloy, or stacks of an APC alloy and ITO (e.g.,ITO/APC/ITO).

A first sensor insulating film TINS1 may be disposed on the firstconnecting parts BE1. The first sensor insulating film TINS1 may be alayer having insulation and optical functions. The first sensorinsulating film TINS1 may be formed as an inorganic film such as, forexample, a silicon nitride layer, a silicon oxynitride layer, a siliconoxide layer, a titanium oxide layer, or an aluminum oxide layer.

The driving electrodes TE and the sensing electrodes RE may be disposedon the first sensor insulating film TINS1. In an exemplary embodiment,the driving electrodes TE and the sensing electrodes RE do not overlapthe first emission areas EA1. The driving electrodes TE and the sensingelectrodes RE may be formed as single layers of, for example, Mo, Ti,Cu, or Al, or may be formed, for example, as stacks of Al and Ti (e.g.,Ti/Al/Ti), stacks of Al and ITO (e.g., ITO/Al/ITO), layers of an APCalloy, or stacks of an APC alloy and ITO (e.g., ITO/APC/ITO).

A second sensor insulating film TINS2 may be disposed on the drivingelectrodes TE and the sensing electrodes RE. The second sensorinsulating film TINS2 may be a layer having insulation and opticalfunctions. The second sensor insulating film TINS2 may include at leastone of an inorganic film and an organic film. The inorganic film may be,for example, a silicon nitride layer, a silicon oxynitride layer, asilicon oxide layer, a titanium oxide layer, or an aluminum oxide layer.The organic film may be formed of, for example, an acrylic resin, anepoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

FIG. 9 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.FIG. 9 is an enlarged layout view illustrating an area B of FIG. 6A.

Referring to FIG. 9 , the first sensor lines SL1 may extend in a sixthdirection DR6. The sixth direction DR6 may be a direction inclined at anangle of about 135° with respect to the first direction (or the X-axisdirection), but the present inventive concept is not limited thereto.The first sensor lines SL1 may be arranged in the first direction (orthe X-axis direction). The distance in the first direction (or theX-axis direction) between the first sensor lines SL1, or the distance inthe first direction (or the X-axis direction) between the secondemission areas EA2, may be about several micrometers (um).

The second emission areas EA2 may be disposed between the first sensorlines SL1. The second emission areas EA2 may be arranged in the sixthdirection DR6 between the first sensor lines SL1. One sensor line SL1may be disposed between each pair of adjacent second emission areas EA2in the first direction (or the X-axis direction). In an exemplaryembodiment, the first sensor lines SL1 do not overlap the secondemission areas EA2, as shown in FIG. 9 . In an exemplary embodiment, thesecond emission areas EA2 may be disposed between at least one of thefirst sensor lines SL1 and the third emission areas disposed in thethird display area DA3 (see, e.g., FIGS. 9 and 6A).

Each of the second emission areas EA2 may include first, second, andthird sub-emission areas SEA1′, SEA2′, and SEA3′, which emit light offirst, second, and third colors, respectively. For example, the firstcolor may be red, the second color may be green, and the third color maybe blue.

First sub-emission areas SEA1′, second sub-emission areas SEA2′, andthird sub-emission areas SEA3′ may be arranged in the first direction(or the X-axis direction). The first sub-emission areas SEA1′, thesecond sub-emission areas SEA2′, and the third sub-emission areas SEA3′may have a rectangular shape in a plan view, but the present inventiveconcept is not limited thereto. For example, the first sub-emissionareas SEA1′, the second sub-emission areas SEA2′, and the thirdsub-emission areas SEA3′ may have a rectangular shape having short sidesextending in the first direction (or the X-axis direction) and longsides (e.g., relatively longer than the short sides) extending in thesecond direction (or the Y-axis direction) in a plan view, but thepresent inventive concept is not limited thereto. Alternatively, thefirst sub-emission areas SEA1′, the second sub-emission areas SEA2′, andthe third sub-emission areas SEA3′ may have various other shapes suchas, for example, a non-tetragonal polygonal shape, a circular shape, oran elliptical shape in a plan view. FIG. 9 illustrates that the firstsub-emission areas SEA1′, the second sub-emission areas SEA2′, and thethird sub-emission areas SEA3′ have substantially the same size, but thepresent inventive concept is not limited thereto. For example, accordingto exemplary embodiments, the first sub-emission areas SEA1′, the secondsub-emission areas SEA2′, and the third sub-emission areas SEA3′ mayhave different sizes.

A first dam DAM1 may be disposed on the left edge of the second displayarea DA2. The first dam DAM1 may be disposed between at least one of thefirst sensor lines SL1 and the cutout portions CP in which the thirdemission areas are disposed. The first dam DAM1 may be a structure forpreventing the spillover of an organic film from the encapsulation layerTFEL, as illustrated in FIG. 17 . The first dam DAM1 may extend in thesixth direction DR6.

The cutout portions CP of the third display area DA3 may be disposed onthe outside of the second display area DA2.

Among the first sensor lines SL1 and the second emission areas EA2, ifonly the first sensor lines SL1 are disposed in the second display areaDA2, and the second emission areas EA2 are not disposed in the seconddisplay area DA2, the second display area DA2 may be a non-display areathat does not display an image.

As illustrated in FIG. 9 , the second display area DA2, which includesthe second emission areas EA2, is disposed between part of the firstdisplay area DA1 in the front portion FS and part of the third displayarea DA3 in the first corner portion CS1. Thus, a non-display areabetween the part of the first display area DA1 in the front portion FSand the part of the third display area DA3 in the first corner portionCS1 can be prevented from becoming visible to the user.

FIG. 10 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

The exemplary embodiment of FIG. 10 differs from the exemplaryembodiment of FIG. 9 in that each of the second emission areas EA2includes first, second, third, and fourth sub-emission areas SEA1′,SEA2′, SEA3′, and SEA4′, as illustrated in FIG. 7 , instead of first,second, and third sub-emission areas SEA1′, SEA2′, and SEA3′. Forconvenience of explanation, a further description of elements andtechnical aspects previously described may be omitted.

Referring to FIG. 10 , each of the second emission areas EA2 may includefirst, second, third, and fourth sub-emission areas SEA1′, SEA2′, SEA3′,and SEA4′, which emit light of first, second, third, and fourth colors,respectively. For example, the first color may be red, the second andfourth colors may be green, and the third color may be blue.

First sub-emission areas SEA1′ and third sub-emission areas SEA3′ may bearranged in the first direction (or the X-axis direction). Secondsub-emission areas SEA2′ and fourth sub-emission areas SEA4′ may also bearranged in the first direction (or the X-axis direction). The firstsub-emission areas SEA1′ and the second sub-emission areas SEA2′ may bealternately arranged in the sixth direction DR6. The third sub-emissionareas SEA3′ and the fourth sub-emission areas SEA4′ may be alternatelyarranged in the sixth direction DR6.

FIG. 11 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

The exemplary embodiment of FIG. 11 differs from the exemplaryembodiment of FIG. 10 in that the first sensor lines SL1 are formed in amesh form between the first sub-emission areas SEA1′, the secondsub-emission areas SEA2′, the third sub-emission areas SEA3′, and thefourth sub-emission areas SEA4′. For convenience of explanation, afurther description of elements and technical aspects previouslydescribed may be omitted.

Referring to FIG. 11 , the first sensor lines SL1 may be disposedbetween the second sub-emission areas SEA2′ and the third sub-emissionareas SEA3′, between the first sub-emission areas SEA1′ and the fourthsub-emission areas SEA4′, and between the first sub-emission areas SEA1′and the second sub-emission areas SEA2′, thus forming a mesh structure.

FIG. 12 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

The exemplary embodiment of FIG. 12 differs from the exemplaryembodiment of FIG. 9 in that multiple first sensor lines SL1 aredisposed between each pair of adjacent second emission areas EA2 in thefirst direction (or the X-axis direction). For convenience ofexplanation, a further description of elements and technical aspectspreviously described may be omitted.

FIG. 12 illustrates that four first sensor lines SL1 are disposedbetween each pair of adjacent second emission areas EA2 in the firstdirection (or the X-axis direction). However, the present inventiveconcept is not limited thereto. For example, according to exemplaryembodiments, the number of first sensor lines SL1 disposed between eachpair of adjacent second emission areas EA2 in the first direction (orthe X-axis direction) may be determined based on whether the firstsensor lines SL1 are visible to the user due to the number and densityof second emission areas EA2 in the second display area DA2. The maximumdistance in the first direction (or the X-axis direction) between thefirst sensor lines SL1 may be about dozens of micrometers (um).

FIG. 13 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

The exemplary embodiment of FIG. 13 differs from the exemplaryembodiment of FIG. 12 only in that each of the second emission areas EA2includes first, second, third, and fourth sub-emission areas SEA1′,SEA2′, SEA3′, and SEA4′, as illustrated in FIG. 7 , instead of first,second, and third sub-emission areas SEA1′, SEA2′, and SEA3′. Thus, forconvenience of explanation, a detailed description of the exemplaryembodiment of FIG. 13 will be omitted.

FIG. 14 is a layout view illustrating exemplary first sensor lines andexemplary second emission areas of the second display area of FIG. 6A.

The exemplary embodiment of FIG. 14 differs from the exemplaryembodiment of FIG. 13 only in that the first sensor lines SL1 are formedin a mesh form between the first sub-emission areas SEA1′, the secondsub-emission areas SEA2′, the third sub-emission areas SEA3′, and thefourth sub-emission areas SEA4′. Thus, for convenience of explanation, adetailed description of the exemplary embodiment of FIG. 14 will beomitted.

FIG. 15 is a layout view illustrating exemplary cutout portions andexemplary third emission areas of the third display area of FIG. 6A.

Referring to FIG. 15 , the first ends of the cutout portions CP may beconnected to the second display area DA2, and the second ends of thecutout portions CP may be connected to the second non-display area NDA2.The cutout portions CP may be formed in a substantially trapezoidalshape in a plan view. The width of the cutout portions CP may graduallyincrease or decrease from the second display area DA2 to the secondnon-display area NDA2. Alternatively, the cutout portions CP may beformed in various other shapes such as, for example, a rectangularshape, a rhombus shape, or a non-tetragonal polygonal shape.

The cutout portions CP may be formed by cutting the display panel 300with light emitted by a laser. As a result, the first cutout gaps CG1may be formed between the cutout portions CP. For example, a firstcutout gap CG1 from among the plurality of first cutout gaps CG1 may beformed between adjacent cutout portions CP from among the plurality ofcutout portions CP. Thus, the cutout portions CP may be spaced apartfrom one another with the first cutout gaps CG1 disposed therebetween.The maximum width of the cutout portions CP may be greater than themaximum width of the first cutout gaps CG1. In an exemplary embodiment,the first sensor lines SL1 are not disposed in the cutout portions CP.

Third emission areas EA3 and second dams DAM2 may be disposed in thecutout portions CP. Each of the third emission areas EA3 may includefirst, second, and third sub-emission areas SEA1″, SEA2″, and SEA3″,which emit light of first, second, and third colors, respectively. Forexample, the first color may be red, the second color may be green, andthe third color may be blue.

The first sub-emission areas SEA1″, the second sub-emission areas SEA2″,and the third sub-emission areas SEA3″ may be arranged in the firstdirection (or the X-axis direction). The first sub-emission areas SEA1″,the second sub-emission areas SEA2″, and the third sub-emission areasSEA3″ may have a rectangular shape in a plan view. For example, thefirst sub-emission areas SEA1″, the second sub-emission areas SEA2″, andthe third sub-emission areas SEA3″ may have a rectangular shape havingshort sides extending in the first direction (or the X-axis direction)and long sides (e.g., relatively longer than the short sides) extendingin the second direction (or the Y-axis direction) in a plan view.However, the present inventive concept is not limited thereto. Forexample, according to exemplary embodiments, the first sub-emissionareas SEA1″, the second sub-emission areas SEA2″, and the thirdsub-emission areas SEA3″ may be formed in various other shapes such as,for example, a non-tetragonal polygonal shape, a circular shape, or anelliptical shape in a plan view. Although FIG. 15 illustrates that thefirst sub-emission areas SEA1″, the second sub-emission areas SEA2″, andthe third sub-emission areas SEA3″ have substantially the same area, thepresent inventive concept is not limited thereto. For example, accordingto exemplary embodiments, the first sub-emission areas SEA1″, the secondsub-emission areas SEA2″, and the third sub-emission areas SEA″′ mayhave different areas.

The second dams DAM2 may be disposed along the edges of the thirddisplay area DA3. The second dams DAM2 may be a structure for preventingthe spillover of an organic film from the encapsulation layer TFEL, asillustrated in FIG. 18 . The second dams DAM2 may be disposed tosurround the third emission areas EA3. For example, according toexemplary embodiments, the second dams DAM2 may entirely surround thethird emission areas EA3.

Since the third emission areas EA3 are disposed in the cutout portionsCP, as illustrated in FIG. 15 , the third display area DA3 can displayan image. That is, an image can be displayed even in the first cornerportion CS1, to which strain is applied by double curvature. Similarly,according to exemplary embodiments, an image can be displayed even inthe second corner portion CS2, the third corner portion CS3, and/or thefourth corner portion CS4.

FIG. 16 is a layout view illustrating exemplary cutout portions andexemplary third emission areas of the third display area of FIG. 6A.

The exemplary embodiment of FIG. 16 differs from the exemplaryembodiment of FIG. 15 in that each of the third emission areas EA3includes first, second, third, and fourth sub-emission areas SEA1″,SEA2″, SEA3″, and SEA4″ instead of first, second, and third sub-emissionareas SEA1″, SEA2″, and SEA3″. The first, second, third, and fourthsub-emission areas SEA1″, SEA2″, SEA3″, and SEA4″ are substantially sameas the first, second, third, and fourth sub-emission areas SEA1, SEA2,SEA3, and SEA4 described in FIG. 7 , thus for convenience ofexplanation, a detailed description of the exemplary embodiment of FIG.16 will be omitted.

FIG. 17 is a cross-sectional view taken along line II-II′ of FIG. 9according to an exemplary embodiment of the present inventive concept.

Referring to FIG. 17 , a TFT ST′ of the TFT layer TFTL, and first,second, and third sub-emission areas SEA1′, SEA2′, and SEA3′ of thelight-emitting element layer EML, may be substantially the same as theirrespective counterparts of FIG. 8 . Thus, for convenience ofexplanation, a detailed description thereof will be omitted. The TFT ST′may include an active layer ACT′, a gate electrode G′, a drain electrodeD′, and a source electrode S′, which are substantially the same as theirrespective counterparts of FIG. 8 .

A first sensor line SL1 may be disposed to not overlap with the first,second, and third sub-emission areas SEA1′, SEA2′, and SEA3′. The firstsensor line SL1 may be disposed on the third buffer film BF3. The firstsensor line SL1 may be formed on the same layer, and of the samematerial, as the first connecting parts BE1 of FIG. 8 .

A scan driving transistor SDT of a scan driving circuit may include ascan active layer SACT, a scan gate electrode SG, a scan sourceelectrode SS, and a scan drain electrode SD. The scan active layer SACT,the scan gate electrode SG, the scan source electrode SS, and the scandrain electrode SD may be substantially the same as the active layersACT, the gate electrodes G, the source electrodes S, and the drainelectrodes D, respectively, of the TFT layer TFTL of FIG. 8 . Thus, forconvenience of explanation, a detailed description thereof will beomitted.

The scan driving transistor SDT is disposed in the TFT layer TFTLtogether with the TFT ST′, which is for driving the first, second, andthird sub-emission areas SEA1′, SEA2′, and SEA3′ of a second emissionarea EA2. Thus, the scan driving transistor SDT may be disposed in anarea where the TFT ST′is not disposed to avoid the TFT ST′. In thiscase, since the first sensor line SL1 is disposed to not overlap thefirst, second, and third sub-emission areas SEA1′, SEA2′, and SEA3′, thescan driving transistor SDT may overlap the first sensor line SL1 in thethird direction (or the Z-axis direction).

A first power supply connecting line VSEL may be disposed on the secondinterlayer insulating film 142. The first power supply connecting lineVSEL may be formed of the same material as source and drain electrodesS′ and D′ of the TFT ST′ and the source and drain electrodes SS and SDof the scan driving transistor SDT.

A first power supply line VSSL may be disposed on the first organic film150. The first power supply line VSSL may be formed of the same materialas a first connecting electrode ANDE1. The first power supply line VSSLmay be connected to the first power supply connecting line VSEL via acontact hole that penetrates the first organic film 150. A first powersupply voltage may be applied to the first power supply line VSSL.

A second light-emitting electrode 173 may be connected to the firstpower supply line VSSL via a contact hole that penetrates the secondorganic film 160. The first power supply voltage from the first powersupply line VSSL may be applied to the second light-emitting electrode173.

The encapsulation layer TFEL may include at least one inorganic filmthat prevents the penetration of oxygen or moisture into thelight-emitting element layer EML. Also, the encapsulation layer TFEL mayinclude at least one organic film that protects the light-emittingelement layer EML from a foreign material such as dust. For example, theencapsulation layer TFEL may include a first inorganic film 191 which isdisposed on the second light-emitting electrode 173, an organic film 192which is disposed on the first inorganic film 191, and a secondinorganic film 193 which is disposed on the organic film 192.

A first dam DAM1 may be disposed in the second display area DA2 toprevent the spillover of the organic film 192 of the encapsulation layerTFEL. The first dam DAM1 may include a first sub-dam SDAM1 which isformed of the same material as the first organic film 150, a secondsub-dam SDAM2 which is formed of the same material as the second organicfilm 160, and a third sub-dam SDAM3 which is formed of the same materialas the bank 180. Due to the presence of the first dam DAM1, the end ofthe organic film 192 may be disposed between the first sub-emission areaSEA1′, which is the outermost sub-emission area, and the first dam DAM1.The first and second inorganic films 191 and 193 may be disposed on thefirst dam DAM1. The first and second inorganic films 191 and 193 may bein contact with each other over the first dam DAM1.

An additional dam may be further disposed on the outside of the firstdam DAM1 to contain the organic film 192 that may have spilt out of thefirst dam DAM1. In this case, the additional dam may have substantiallythe same structure as the first dam DAM1.

The first power supply connecting line VSEL may be connected to a firstpower supply outer line VSOL, and the first power supply outer line VSOLmay extend to the edge of the second display area DA2. Crack preventionholes CH, which penetrate the first power supply outer line VSOL, thefirst and second interlayer insulating films 141 and 142, and the gateinsulating film 130, may be formed on the edge of the second displayarea DA2 to prevent the propagation of cracks. The first organic film150 may be formed to cover the crack prevention holes CH. In anexemplary embodiment, the crack prevention holes CH may be omitted.

As illustrated in FIG. 17 , the scan driving transistor SDT of the scandriving circuit may be disposed in the area where the TFT ST′, which isfor driving the first, second, and third sub-emission areas SEA1′,SEA2′, and SEA3′ of the second emission area EA2, is not disposed toavoid the TFT ST′. In this case, since the first sensor line SL1 isdisposed to not overlap the first, second, and third sub-emission areasSEA1′, SEA2′, and SEA3′, the scan driving transistor SDT can overlap thefirst sensor line SL1 in the third direction (or the Z-axis direction).

FIG. 18 is a cross-sectional view taken along line III-III′ of FIG. 15 .

Referring to FIG. 18 , a TFT ST″ of the TFT layer TFTL, and first,second, and third sub-emission areas SEA1″, SEA2″, and SEA3″ of thelight-emitting element layer EML, may be substantially the same as theirrespective counterparts of FIG. 8 . Thus, for convenience ofexplanation, a detailed description thereof will be omitted. The TFT ST″may include an active layer ACT″, a gate electrode G″, a drain electrodeD″, and a source electrode S″, which are substantially the same as theirrespective counterparts of FIG. 8 .

A first power supply connecting line VSEL, a first power supply lineVSSL, a first power supply outer line VSOL, and crack prevention holesCH′ are substantially the same as their respective counterparts of FIG.17 . Thus, for convenience of explanation, a detailed descriptionthereof will be omitted.

In the third display area DA3, a second dam DAM2 may be disposed toprevent the spillover of the organic film 192 of the encapsulation layerTFEL. The second dam DAM2 may include a first sub-dam SDAM1′ which isformed of the same material as the first organic film 150, a secondsub-dam SDAM2′ which is formed of the same material as the secondorganic film 160, and a third sub-dam SDAM3′ which is formed of the samematerial as the bank 180. Due to the presence of the second dam DAM2,the end of the organic film 192 may be disposed between the firstsub-emission area SEA1″, which is the outermost sub-emission area, andthe second dam DAM2. The first and second inorganic films 191 and 193may be disposed on the second dam DAM2. The first and second inorganicfilms 191 and 193 may be in contact with each other over the second damDAM2.

An additional dam may be further disposed on the outside of the seconddam DAM2 to contain the organic film 192 that may have spilt out of thesecond dam DAM2. In this case, the additional dam may have substantiallythe same structure as the second dam DAM2.

As illustrated in FIG. 18 , the first, second, and third sub-emissionareas SEA1″, SEA2″, and SEA3″ of the third emission area EA3 aresurrounded by the second dam DAM2. Thus, the first inorganic film 191,the organic film 192, and the second inorganic film 193 of theencapsulation layer TFEL can stably seal the third emission area EA3.

FIG. 19 is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept.

The exemplary embodiment of FIG. 19 differs from the exemplaryembodiment of FIG. 6A in that second sensor lines SL2 are disposed in acutout common pattern CCP′ of a substrate SUB. For convenience ofexplanation, a further description of elements and technical aspectspreviously described may be omitted.

Referring to FIG. 19 , the length of cutout connecting portions CBP′,which are connected to cutout portions CP, may be smaller than thelength of the cutout connecting portions CBP of FIG. 6A. As a result,the width of the cutout common pattern CCP′ of FIG. 19 may be greaterthan the width of the cutout common pattern CCP of FIG. 6A.

The second sensor lines SL2 may be disposed in the cutout common patternCCP′ of the second non-display area NDA2, and may be defined as beingsensor lines connected to some sensor electrodes SE of the first displayarea DA1. For example, the second sensor lines SL2 may include seconddriving lines TL2 connected to driving electrodes TE disposed in theupper part of the first display area DA1.

The second sensor lines SL2 may be formed in a winding shape, asillustrated in FIGS. 20 and 21 , to reduce strain applied by doublecurvature in the first corner portion CS1. FIGS. 20 and 21 are enlargedlayout views of an area C of FIG. 19 . That is, FIGS. 20 and 21illustrate enlarged views of the second sensor lines SL2.

In an exemplary embodiment, as illustrated in FIG. 20 , the secondsensor lines SL2 may be formed in a wavy shape. In this example, each ofthe second sensor lines SL2 may include a first sub-sensor line SL21which extends substantially straight, a first bent portion BP1 whichextends from the first sub-sensor line SL21 and is bent to have apredetermined curvature, a second sub-sensor line SL22 which extendssubstantially straight from the first bent portion BP1, and a secondbent portion BP2 which is bent to have a predetermined curvature. Ineach of the second sensor lines SL2, groups of the first sub-sensor lineSL21, the first bent portion BP1, the second sub-sensor line SL22, andthe second bent portion BP2 may be repeatedly arranged. The first andsecond bent portions BP1 and BP2 may have substantially the samecurvature or may have different curvatures.

In an exemplary embodiment, as illustrated in FIG. 21 , the secondsensor lines SL2 may be formed in a winding shape. In this example, eachof the second sensor lines SL2 may include a first bent portion BP1′which has a fifth curvature, and a second bent portion BP2′ which has asixth curvature. In each of the second sensor lines SL2, groups of thefirst and second bent portions BP1′ and BP2′ may be repeatedly arranged.The fifth curvature of the first bent portion BP1′ and the sixthcurvature of the second bent portion BP2′ may be substantially the sameor may be different.

In an exemplary embodiment, the second non-display area NDA2 does notinclude the cutout connecting portions CBP′, second cutout gaps CG2, andthe cutout common pattern CCP′. In this case, the second sensor linesSL2 may be disposed anywhere in the second non-display area NDA2.

As illustrated in FIG. 19 , as the width of the cutout common patternCCP′ increases, second sensor lines SL2 corresponding to some of thefirst sensor lines SL1 in the second display area DA2 may be disposed inthe second non-display area NDA2. That is, some of the first sensorlines SL1 in the second display area DA2 may be moved to the secondnon-display area NDA2. Thus, since the number of first sensor lines SL1in the second display area DA2 can be reduced, enough space for thearrangement of the second emission areas EA2 can be secured in thesecond display area DA2, and the resolution of the second display areaDA2 can be improved.

Part of the second display area DA2, part of the third display area DA3,and part of the second non-display area NDA2 in the second to fourthcorner portion CS2 to CS4 may be similar to their respectivecounterparts of FIG. 19 . However, the part of the second non-displayarea NDA in the second corner portion CS2 differs from its counterpartof FIG. 19 in that the second sensor lines SL2 include sensing lines RLconnected to sensing electrodes RE in the first display area DA1,instead of second driving lines TL2. Also, the part of the secondnon-display area NDA2 in the third corner portion CS3 differs from itscounterpart of FIG. 19 in that it does not include second sensor linesSL2. The part of the second non-display area NDA2 in a fourth cornerportion CS4 may be substantially the same as its counterpart of FIG. 19.

FIG. 22 is a layout view illustrating first, second, and third displayareas and a second non-display area of a display panel according to anexemplary embodiment of the present inventive concept.

The exemplary embodiment of FIG. 22 differs from the exemplaryembodiment of FIG. 19 in that third sensor lines SL3 are disposed in thethird display area DA3. For convenience of explanation, a furtherdescription of elements and technical aspects previously described maybe omitted.

Referring to FIG. 22 , the third display area DA3 may include thirdemission areas EA3 and third sensor lines SL3, which are disposed inisland portions (ISP1, ISP2, ISP3, and ISP4 of FIGS. 23 and 24 ).

Since the island portions (ISP1, ISP2, ISP3, and ISP4) are formed bylaser cutting, the island portions (ISP1, ISP2, ISP3, and ISP4) may bespaced apart from one another. The island portions (ISP1, ISP2, ISP3,and ISP4) may be connected via connecting portions (CNP1, CNP2, CNP3,and CNP4 of FIGS. 23 and 24 ). The island portions (ISP1, ISP2, ISP3,and ISP4) will be described in further detail below with reference toFIGS. 23 and 24 .

The third sensor lines SL3 may be disposed in the third display area DA3and may be defined as being sensor lines connected to some sensorelectrodes SE in the first display area DA1. For example, the thirdsensor lines SL3 may include second driving lines TL2 connected todriving electrodes TE disposed in the upper part of the first displayarea DA1.

The third sensor lines SL3 may be arranged in a mesh form, asillustrated in FIG. 22 . The third sensor lines SL3 may be disposedbetween the third emission areas EA3.

As illustrated in FIG. 22 , the island portions (ISP1, ISP2, ISP3, andISP4) may be formed in the third display area DA3 and may be connectedvia the connecting portions (CNP1, CNP2, CNP3, and CNP4), therebyarranging third sensor lines SL3 corresponding to some of first sensorlines SL1 in the second display area DA2. That is, some of the firstsensor lines SL1 in the second display area DA2 may be moved to thethird display area DA3. Thus, since the number of first sensor lines SL1in the second display area DA2 can be reduced, enough space for thearrangement of the second emission areas EA2 can be secured in thesecond display area DA2, and the resolution of the second display areaDA2 can be improved.

FIGS. 23 and 24 are layout views illustrating exemplary island portions,exemplary connecting portions, exemplary third sensor lines, andexemplary third emission areas of the third display area of FIG. 22 .

Referring to FIGS. 23 and 24 , the third display area DA3 may furtherinclude first, second, third, and fourth island portions ISP1, ISP2,ISP3, and ISP4 and first, second, third, and fourth connecting portionsCNP1, CNP2, CNP3, and CNP4.

The first, second, third, and fourth island portions ISP1, ISP2, ISP3,and ISP4 may be spaced apart from one another. For example, a firstcutout portion CUP1 may be disposed between the first and second islandportions ISP1 and ISP2, and as a result, the first island portion ISP1may be spaced apart from the second island portion ISP2 in a seventhdirection DR7. For example, a second cutout portion CUP2 may be disposedbetween the first and third island portions ISP1 and ISP3, and as aresult, the first island portion ISP1 may be spaced apart from the thirdisland portion ISP3 in an eighth direction DR8. For example, the secondcutout portion CUP2 may be disposed between the second and fourth islandportions ISP2 and ISP4, and as a result, the fourth island portion ISP4may be spaced apart from the second island portion ISP2 in the eighthdirection DR8. For example, a third cutout portion CUP3 may be disposedbetween the third and fourth island portions ISP3 and ISP4, and as aresult, the fourth island portion ISP4 may be spaced apart from thethird island portion ISP3 in the seventh direction DR7.

The first, second, third, and fourth connecting portions CNP1, CNP2,CNP3, and CNP4 may extend from the first, second, third, and fourthisland portions ISP1, ISP2, ISP3, and ISP4, respectively.

The first connecting portion CNP1 may extend from the first islandportion ISP1 along the seventh direction DR7. The first connectingportion CNP1 may connect the first and second island portions ISP1 andISP2.

The second connecting portion CNP2 may extend from the first islandportion ISP1 along the eighth direction DR8. The second connectingportion CNP2 may be connected to an island portion disposed on the upperside of the first island portion ISP1.

The third connecting portion CNP3 may extend from the first islandportion ISP1 along the seventh direction DR7. The third connectingportion CNP3 may be connected to an island portion disposed on the leftside of the first island portion ISP1.

The fourth connecting portion CNP4 may extend from the first islandportion ISP1 along the eighth direction DR8. The fourth connectingportion CNP4 may be connected to the third island portion ISP3.

Third emission areas EA3 may be disposed in the first, second, third,and fourth island portions ISP1, ISP2, ISP3, and ISP4. Each of the thirdemission areas EA3 may include first, second, and third sub-emissionareas SEA1″, SEA2″, and SEA3″, which emit light of first, second, andthird colors, respectively. For example, the first color may be red, thesecond color may be green, and the third color may be blue.

The first, second, and third sub-emission areas SEA1″, SEA2″, and SEA3″may be arranged in the seventh direction DR7. The third sub-emissionarea SEA3″ may be disposed between the first and second sub-emissionareas SEA1″ and SEA2″ in the seventh direction DR7. The first, second,and third sub-emission areas SEA1″, SEA2″, and SEA3″ may have arectangular shape in a plan view. For example, the first, second, andthird sub-emission areas SEA1″, SEA2″, and SEA3″ may have a rectangularshape having short sides in the seventh direction DR7 and long sides(e.g., relatively longer than the short sides) in the eighth directionDR8 in a plan view. However, the present inventive concept is notlimited thereto. For example, according to exemplary embodiments, thefirst, second, and third sub-emission areas SEA1″, SEA2″, and SEA3″ maybe formed in various other shapes such as, for example, a non-tetragonalpolygonal shape, a circular shape, or an elliptical shape in a planview. Although FIGS. 23 and 24 illustrate that the third sub-emissionarea SEA3″ is larger in size than the first and second sub-emissionareas SEA1″ and SEA2″, the present inventive concept is not limitedthereto.

Third sensor lines SL3 may be disposed in the first, second, third, andfourth island portions ISP1, ISP2, ISP3, and ISP4 and the first, second,third, and fourth connecting portions CNP1, CNP2, CNP3, and CNP4. In anexemplary embodiment, the third sensor lines SL3 do not overlap thefirst, second, and third sub-emission areas SEA1″, SEA2″, and SEA3″.That is, in an exemplary embodiment, the third sensor lines SL3 do notoverlap the third emission areas EA3. The third sensor lines SL3 may bedisposed between the first and third sub-emission areas SEA1″ and SEA3″and between the second and third sub-emission areas SEA2″ and SEA3″. Thethird sensor lines SL3 may be formed in an amorphous mesh form.

Since the third display area DA3 is disposed in a first corner portionCS1, the first, second, third, and fourth island portions ISP1, ISP2,ISP3, and ISP4 may become spaced apart from one another, as illustratedin FIG. 24 , due to strain caused by double curvature.

Since the third emission areas EA3 are disposed in the first, second,third, and fourth island portions ISP1, ISP2, ISP3, and ISP4, asillustrated in FIGS. 23 and 24 , the third display area DA3 can displayan image. That is, an image can be displayed even in the first cornerportion CS1, to which strain is applied by double curvature.

Also, since the island portions (ISP1, ISP2, ISP3, and ISP4) areconnected to one another via the connecting portions (CNP1, CNP2, CNP3,and CNP4) and the third sensor lines SL3 are disposed in the connectingportions (CNP1, CNP2, CNP3, and CNP4), some of the first sensor linesSL1 in the second display area DA2 may be moved to the third displayarea DA3. Thus, since the number of first sensor lines SL1 in the seconddisplay area DA2 can be reduced, enough space for the arrangement of thesecond emission areas EA2 can be secured in the second display area DA2,and the resolution of the second display area DA2 can be improved.

FIG. 25 is a cross-sectional view taken along line IV-IV′ of FIG. 23according to an exemplary embodiment of the present inventive concept.

Referring to FIG. 25 , a TFT ST″ of a TFT layer TFTL, and first, second,and third sub-emission areas SEA1″, SEA2″, and SEA3″ of a light-emittingelement layer EML, may be substantially the same as their respectivecounterparts of FIG. 18 . Thus, for convenience of explanation, adetailed description thereof will be omitted.

Third sensor lines SL3 may be disposed to not overlap the first, second,and third sub-emission areas SEA1″, SEA2″, and SEA3″. The third sensorlines SL3 may be disposed on a third buffer film BF3. The third sensorlines SL3 may be formed on the same layer, and of the same material, asthe first connecting parts BE1 of FIG. 8 .

In a display device according to an exemplary embodiment of the presentinventive concept, a third display area that can display an image isdisposed in the corner portions of a display device, and a seconddisplay area including emission areas is additionally disposed between afirst display area in the front portion of the display device and thethird display area. Accordingly, when an image is displayed in the firstand third display areas, a non-display area between the first and thirddisplay areas can be prevented from becoming visible to a user.

In a display device according to an exemplary embodiment of the presentinventive concept, since sensor lines are disposed in a non-display areaon the outside of the third display area, the number of sensor linesdisposed in the second display area between the first and third displayareas can be reduced. As a result, enough space for the arrangement ofsecond emission areas can be secured in the second display area, and theresolution of the second display area can be improved.

In a display device according to an exemplary embodiment of the presentinventive concept, since sensor lines are disposed in the third displayarea, the number of sensor lines disposed in the second display areabetween the first and third display areas can be reduced. As a result,enough space for the arrangement of second emission areas can be securedin the second display area, and the resolution of the second displayarea can be improved.

While the present inventive concept has been particularly shown anddescribed with reference to the exemplary embodiments thereof, it willbe understood by those of ordinary skill in the art that various changesin form and detail may be made thereto without departing from the spiritand scope of the present inventive concept as set forth in the followingclaims.

What is claimed is:
 1. A display device, comprising: a display panelincluding a front portion, a first side portion which extends from afirst side of the front portion, a second side portion which extendsfrom a second side of the front portion, and a corner portion disposedbetween the first side portion and the second side portion, and whereinthe display panel further includes: a first display area disposed in thefront portion and including a plurality of first emission areas; and asecond display area disposed in the corner portion and including aplurality of second emission areas, and wherein a number of the secondemission areas per an unit area of the second display area is smallerthan a number of the first emission areas per an unit area of the firstdisplay area.
 2. The display device of claim 1, wherein the seconddisplay area is disposed in the front portion.
 3. The display device ofclaim 1, wherein the second display area is disposed in the first sideportion and the second side portion.
 4. The display device of claim 1,wherein the display panel further includes: a third display areadisposed in the corner portion and including a plurality of thirdemission areas, and wherein the second display area is disposed betweenthe first display area and the third display area.
 5. The display deviceof claim 4, wherein a number of the third emission areas per an unitarea of the third display area is smaller than the number of the firstemission areas per the unit area of the first display area.
 6. Thedisplay device of claim 4, wherein the third display area is disposed inthe first side portion and the second side portion.
 7. The displaydevice of claim 4, wherein the first display area further includes aplurality of sensor electrodes, and wherein the second area furtherincludes a plurality of sensor lines which are connected to theplurality of sensor electrodes.
 8. The display device of claim 7,wherein the plurality of sensor lines do not overlap the second emissionareas.
 9. The display device of claim 7, wherein some of the secondemission areas are disposed between adjacent sensor lines among theplurality of sensor lines.
 10. The display device of claim 7, wherein atleast one of a sensor lines among the plurality of sensor lines isdisposed between each pair of adjacent second emission areas.
 11. Thedisplay device of claim 4, wherein a shape of each of the first emissionareas is different from a shape of each of the second emission areas, ora shape of each of the third emission areas.
 12. The display device ofclaim 4, wherein a size of each of the first emission areas is differentfrom a size of each of the second emission areas, or a size of each ofthe third emission areas.
 13. A display device, comprising: a displaypanel including a front portion, a first side portion which extends froma first side of the front portion, a second side portion which extendsfrom a second side of the front portion, and a corner portion disposedbetween the first side portion and the second side portion, and whereinthe display panel further includes: a first display area disposed in thefront portion and including a plurality of first light-emittingelements; and a second display area disposed in the corner portion, andwherein the second display area includes: a plurality of secondlight-emitting elements; a plurality of thin film transistors, each ofthe plurality of thin film transistors is connected to corresponding oneof the plurality of second light-emitting elements; and a plurality ofscan driving transistors of a scan driving circuit for outputting scansignals, and wherein at least one thin film transistor among theplurality of thin film transistors is disposed between adjacent scandriving transistors among the plurality of scan driving transistors inone direction.
 14. The display device of claim 13, wherein the seconddisplay area further includes a dam outside the plurality of scandriving transistors.
 15. The display device of claim 14, wherein thedisplay panel further includes a third display area disposed in thecorner portion and including a plurality of third light-emittingelements, and wherein first dam is disposed closer to the third displayarea than the first display area.
 16. The display device of claim 14,wherein the second display area further includes a first power supplyline to which a first power supply voltage is applied.
 17. The displaydevice of claim 16, wherein the first power supply line overlaps atleast one scan driving transistor of the plurality of scan drivingtransistors.
 18. The display device of claim 17, wherein the first powersupply line is electrically connected to a common electrode of theplurality of second light-emitting elements.
 19. The display device ofclaim 14, wherein the second display area further includes a crackprevention hole outside the dam.
 20. The display device of claim 13,wherein a thin film transistor among the plurality of thin filmtransistors overlaps a second light-emitting element among the pluralityof second light-emitting elements.